obs

Noun

slang uncountable

(slang) police observation / An observation hut.

Japanese Meaning

（スラング）警察による監視活動 / 観察用小屋（監視小屋）

We called it off when we realized there were obs nearby watching the meeting.

会合を見張っている警察の張り込みが近くにいると分かって、中止にした。

Sense（1）

(slang) police observation

But I now knew I was under obs by the Gardai as well as by GMP.

Sense（2）

An observation hut.